Grapevine named &#39;SORELI&#39;

ABSTRACT

A new and distinct variety of grapevine, primarily suited to the growing conditions of the temperate regions, and characterized by its medium-strong vigor; horizontal growth habit; medium-sized, wedge-shaped to circular-shaped leaves; very low to low weight berry clusters; berries with slightly firm flesh, neutral taste, and no flesh coloration; primarily used for wine; and resistance to winter temperatures (to −24° C.), resistance to downy mildew, and tolerance to powdery mildew.

LATIN NAME OF THE GENUS AND SPECIES OF THE PLANT CLAIMED

Vitis×vinifera (hybrid)

VARIETY NAME

‘SORÉLI’

BACKGROUND OF THE INVENTION

The present invention relates to a new and distinct summer/fall bearing grapevine variety, botanically known as Vitis×vinifera (hybrid), and hereinafter referred to by the name ‘SORÉLI’.

The new grapevine ‘SORÉLI’ is a product of a controlled breeding program conducted by the inventors in Udine, Italy. The objective of the breeding program was to develop a new grapevine variety particularly characterized by resistance to cold (<−20° C.), resistance to downy mildew (Plasmopara viticola), and tolerance to powdery mildew (Uncinula necator).

The new grapevine ‘SORÉLI’ originated from a cross made by the inventors in 2002 in Udine, Italy. The female or seed parent is the grapevine variety, Vitis vinifera cv. ‘Tocai Friulano’ (unpatented), and the male or pollen parent is the grapevine variety, Vitis cv. ‘20/3’ (Bianca×SK77-4/5)(unpatented).

The new grapevine ‘SORÉLI’ was discovered and selected by the inventor as a single flowering plant within the progeny of the stated cross in a controlled environment in 2002 in Udine, Italy. Asexual reproduction of the new grapevine variety by grafting was first performed in February 2004 in Rauscedo, Friuli Venezia Giulia region, Italy, and has demonstrated that the combination of characteristics as herein disclosed for the new cultivar are firmly fixed and retained through successive generations of asexual reproduction. The new cultivar reproduces true to type.

SUMMARY OF THE INVENTION

‘SORÉLI’ is primarily adapted to the climate and growing conditions of the temperate regions with average yearly temperature about 13° C., minimum winter temperature about −21° C., annual rainfall around 700-1500 mm of rain (e.g. North-Eastern Italy, Friuli). This region provides the necessary year-round temperatures required for it to produce and maintain a strong vigorous plant with consistent fruit production from April through November on primocanes and in the ensuing year from April through November on the floricanes.

The following traits have been repeatedly observed and are determined to be unique characteristics of ‘SORÉLI’, which in combination distinguish this grapevine plant as a new and distinct variety.

-   1. Medium-strong vigor; -   2. Horizontal growth habit; -   3. Medium wedge-shaped to circular shaped leaves with dark green     upper surfaces and, green lower surfaces and medium texture; -   4. Very low to low weight, medium-dense, conical-shaped berry     clusters with two middle size wings; green-yellow berries with     slightly firm flesh, neutral taste, and no flesh coloration;     primarily used for wine; and early maturity (late August in Middle     Friuli, North-Eastern Italy); -   5. Primocanes and floricanes with elliptic cross section, brownish     color, no lenticels, and medium-sized internodes (diameter: 8 mm); -   6. Early harvesting time (late August in Middle Friuli,     North-Eastern Italy); and -   7. Resistance to winter temperature (−24° C.), resistance to downy     mildew, and tolerance to powdery mildew.

Plants of the new grapevine ‘SORÉLI’ differ from plants of the parents, Vitis vinifera ‘Tocai Friulano’ (unpatented) and Vitis cross ‘20/3’ (unpatented), in the following characteristics described in Table 1.

TABLE 1 Comparison with parent varieties Female Parent Male Parent Charac- New Cultivar ‘Tocai Friulano’ ‘20/3’ teristic ‘SORÉLI’ (unpatented) (unpatented) vigor: medium-strong strong medium growth horizontal semi-erect semi-erect habit leaf medium, dark medium size, light Medium size, light green color (up- green color (upper green color (upper per surface), surface), green surface), green color green color (low- color (lower sur- (lower surface), no er surface), no face), very few hairs in both hairs in both sur- hairs in both sur- surfaces, wedge- faces, wedge- faces, circular shaped-kidney- shaped to circular shape, medium shaped, medium shape, medium texture texture texture cluster Very low-low low weight, con- low weight, conical, weight, conical ical, with 1-2 with 1-2 wings, shape with 1-2 wings, dense, ber- medium dense, ber- middle size wings, ry skin with green- ry skin with green- medium dense, yellow color, soft yellow color, berry skin with flesh, neutral taste, slightly firm flesh, green-yellow col- no flesh coloration neutral taste, or, slightly firm no flesh coloration flesh, neutral taste, no flesh coloration primo- elliptic cross sec- circular cross sec- oblate cross section, cane and tion, brownish col- tion, brownish col- brownish color, floricane or, lenticels: ab- or, lenticels: ab- lenticels: absent, sent, medium in- sent, short-medium medium internodes, ternodes, diameter: internodes, diam- diameter small small (about 8 mm) eter small (about (about 8 mm) 8 mm) harvest- early (last decade Early-medium Early (last decade ing time of August in Mid- (early September, August, Middle dle Friuli, North- Middle Friuli, Friuli, North- Eastern Italy), North-Eastern Eastern Italy) Italy) resis- resistant to winter Average resistance resistant to winter tances temperature to winter tempera- temperature not (−24° C.), resistant ture (−15° C.), sus- checked, resistant to downy mildew, ceptible to downy to downy mildew, tolerant to powdery mildew, susceptible resistant to pow- mildew. to powdery mildew dery mildew

Of the many commercial cultivars known to the present inventor, the most similar to the new grapevine ‘SORÉLI’ is the female parent ‘Tocai Friulano’, to which a comparison has been provided above.

BRIEF DESCRIPTION OF THE PHOTOGRAPHS

The accompanying photographs illustrate the overall appearance of the new grapevine ‘SORÉLI’ showing the colors as true as is reasonably possible with colored reproductions of this type. Colors in the photographs may differ slightly from the color values cited in the detailed botanical description, which accurately describe the color of ‘SORÉLI’.

FIG. 1A and FIG. 1B show a typical fruit cluster of ‘SORÉLI’ taken on Aug. 30, 2012, in Udine, Italy.

FIG. 2 shows a typical mature leaf (upper surface, left and lower surface, right) of ‘SORÉLI’ taken on May 31, 2012, in Udine, Italy.

FIG. 3 shows a typical mature vine of ‘SORÉLI’ taken on Aug. 6, 2012.

FIG. 4 shows a close-up view of typical mature fruit of ‘SORÉLI taken on Aug. 30, 2012, in Udine, Italy

DETAILED BOTANICAL DESCRIPTION

The following description of ‘SORÉLI’ unless otherwise noted, is based on observations taken during the 2011, 2012, and 2013 growing seasons(s) in Udine, Italy and Fossalon di Grado (GO), Italy, from plants dug from a nursery located in, Rauscedo (PN), Italy during the beginning of December 2007 and planted approximately 16 to 20 weeks later in Udine, Italy and Fossalon di Grado (GO), Italy. The phenotypical descriptions and color designations stated for the new variety may vary, depending upon variations in environmental factors, including weather (temperature, humidity and light intensity), day length, soil type, location and cultural conditions. ‘SORÉLI’ has not been observed under all possible environmental conditions.

‘TOCAI FRIULANO’ Characteristic ‘SORÉLI’ (unpatented) GENERAL Resistance to Resistant to downy Susceptible to downy pest/disease mildew, tolerant to mildew and to powdery powdery mildew mildew Resistance to Resistant to winter Resistant to winter natural elements cold down to −24° C. cold down to −15° C. VINE Vigor Medium-strong strong Trunk diameter 6 cm (6 yrs-old plant)  6.5 Bark color Dark brown Dark brown underbark color Light brown Light brown texture n.a. n.a. Canes length Internode length Internode length cm 12 about cm 10 width 8 mm 8 mm Shoots shape Erected, cross section: Semi-erected, cross sec- elliptic, surface: with tion: circular, surface: stripes, nodes and inter- smooth, nodes and inter- nodes without hairs nodes without hairs color internodes with red and Internodes with green green pigmentation on color on ventral and dorsal both sides, nodes with side, nodes with green ven- red and green pigmen- tral and dorsal side tation on both sides Tendrils form bifid or trifid bifid color Green Green texture Normal normal number 2 or <2 consecutive 2 or <2 consecutive Buds size average average shape round round color Light brown Light brown number 2/node 2/node time of budbreak early early-medium LEAVES Size medium medium Number of leaflets  5  5 Glossiness Medium medium Cross section shape revolute V-shaped Color (immature) Upper surface green Light green Under surface green green Color (mature) Upper surface green Medium green Under surface green Darker green Petiole Length (cm)  5.5  6.0 Color (upper green green surface) Color (under green green surface) Stipule orientation n.a. n.a. FLOWERS Flowering period End of May End of May (time of beginning of flowering) Sex hermaphrodite hermaphrodite Size Average average Diameter (cm) 0.3 (stamens) 0.3 (stamens) Fragrance average average Flower number (at n.a. n.a. 3^(rd) node from tip of lateral mean and range) Petals Length (cm) n.a. n.a. Width (cm) n.a. n.a. Overall shape calyptra calyptra Color (immature) green green Upper surface Under surface Color (mature) green green Upper surface Under surface Sepals Length (cm) n.a. n.a. Width (cm) n.a. n.a. Overall shape n.a. n.a. Color (immature) n.a. n.a. Upper surface Under surface Color (mature) n.a. n.a. Upper surface Under surface Pedicel Length (mm)  7  7 Color green green FRUIT Primocane time of August 30th September 7th fruiting (1^(st) pick) Clusters cluster weight g 170 g 230 cluster shape cylindrical conical cluster length long (mm 190) medium avg. berries per 160 220 cluster avg. clusters per  2  2 shoot Berries Berry size Very low to low (g 1.5) Very low to low (g 1.8) Berry length (cm)  1.3  1.50 Berry width (cm)  1.3  1.50 Overall shape of globose globose berry Berry Texture slightly firm soft Berry Color green green (immature) Berry Color green green (mature) Soluble solids (%)  22.7  21.1 Titratable acidity  5.0  5.7 (as g/L tartaric acid) Sugar/acid ratio  4.5  3.7 Firmness Slightly firm soft Seeds 2-3 2-3 Skin cracking? no rarely Juice color transparent transparent Berry taste Neutral neutral Eating quality n.a. n.a. Berry uses wine wine Shipping quality n.a. n.a. 

What is claimed is:
 1. A new and distinct grapevine, referred to as ‘SORÉLI, as herein described and illustrated by the characteristics set forth above. 